Lambda Hydrae

λ Hydrae, Latinised as Lambda Hydrae, is a spectroscopic binary star in the constellation Hydra. Its apparent magnitude is 3.61 Located around 33.3 pc distant. The spiral galaxy NGC 3145 is only $7.8 '$ away to the southwest.

The primary is an orange giant of spectral type K0IIICN+1, a star that has used up its core hydrogen, left the main sequence, and expanded into a giant. It is considered to be a red clump giant, a cool horizontal branch star that is burning helium in its core.

λ Hydrae has two visual companions, components B and C, 11th and 13th magnitude stars respectively $71 "$ and $111 "$ away.